Unreal Engine Issues
Unreal Engine Issues
Dataprep crash
UE - Editor - Content Pipeline - Visual Dataprep - Apr 16, 2025This question was created in reference to: [Link Removed] Last post fixed the import crash, but it seems it added another. If we hit Execute button twice in a row by mistake we get a crash with th ...
The number of elements in an array remain the same as the default when duplicating an actor
UE - Gameplay - Blueprint - Feb 22, 2017If a user removes elements from an array in an instance of that blueprint in the level and then duplicates the actor (in the level ) containing the array, then the resulting actor will have the orig ...
Ensure condition failed when destroying a Level Sequence Actor on tick
UE - Anim - Sequencer - Oct 18, 2019In Tick processing of LevelSequencActors of World Tick, If you destroy an actor with an actor's ticks, delete it immediately from the LevelSequencActor array. I think that the problem occurred becau ...
Moving the file location of the Editor Startup map appears to break the reference to the startup map
Tools - Nov 10, 2016Moving the file location of the Editor Startup map appears to break the reference to the startup map. The editor fails to find the map and so does not use it for the start up map. Notes: In the ...
Using collapse to function on an event binding causes a crash when that function is referenced in another class
UE - Gameplay - Blueprint - Nov 28, 2016Collapsing an event binding to a function results in a function that takes in a delegate as an input. This function existing ends up causing any references to this blueprint class in another class t ...
Changing blendspace on a blendspace player node resets the play time
OLD - Anim - Jan 11, 2017Open QAGame and duplicate Player_RunBlend to Player_RunBlend2. Create an animation blueprint for M_Avg_Base_AnimSkeleton and set it up in the screen shot below. ( "New Var 0" and "New Var 1" contai ...
Dark Artifacts Appear On Meshes With "Use As Occluder" After Enabling DBuffer Decals
UE - Graphics Features - Feb 13, 2017Objects set to "us as occluder" will create dark artifacts from certain view angles. For this to occur "DBuffer Decals" need to be enabled in the project settings. The licensee has noted that addi ...
[CrashReport] UE4Editor_Engine!UBlendSpaceBase::UpdatePreviewBasePose() [blendspacebase.cpp:1220]
OLD - Anim - May 11, 2017This crash has been logged due to high frequency among our users. I have tested in 4.15.2 based on the user comments below, but have been unable to reproduce this issue. In my attempts the Blendspa ...
Widget components added to characters added in a C++ template will not allow packaged builds to open
UE - Gameplay - Blueprint - Oct 19, 2017When Widget components added to characters added in a C++ template When the build is packaged and you attempt to open it the window will not open, despite a process running in the background Versio ...
Animation FBX export is broken for ThirdPersonCharacter
UE - Editor - Content Pipeline - Datasmith - Exporters - Jul 20, 2018It seems like the animation fbx exporter is broken. The mesh is exported just fine and can be imported in any application without issue. As soon as the animation is exported the mesh becomes broken ...